I am not in a place with access to my prehistorical textbooks ... any help with dates would be greatly appreciated.

Chassis # 304477
Engine # 900458

I believe it to be a 1966 911 but it may be a late 65 - I can't seem to find any definitive answers. The car has 4-screw grilles, center lube cams and originally came with Solexs. What am I missing?